factorise 27x² - 108
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Answer:
27(x^2-4)
27(x^2-2^2)
27(x+2) (x-2)
Verified answer
[tex]27 {x}^{2} - 108 \\ \\ = 3(9 {x}^{2} - 36) \\ \\ = 3 [ ({3x)}^{2} - ( {6)}^{2} ]\\ \\ = 3(3x + 6)(3x - 6)[/tex]
This is the required answer.